Electrolytic copper foil drying device

[0027] Example 1

[0028] Reference Figure 1-4 , The present invention provides a drying device for electrolytic copper foil, comprising an unwinding roll 1 and a winding roll 2, and an electrolytic copper foil (not shown in the figure) is wound between the unwinding roll 1 and the winding roll 2. The winding roller 2 pulls the electrolytic copper foil to rewind, and drives the unwinding roller 1 to unwind. A box 3 is provided between the unwinding roller 1 and the wind-up roller 2, and the box 3 is provided with a guiding mechanism. The bottom of the guide mechanism is provided with an air intake mechanism, the top of the guide mechanism is provided with a heat treatment mechanism, one side of the guide mechanism is provided with a drive mechanism, and the guide mechanism is provided with a friction mechanism;

[0029] The friction mechanism includes a plurality of rollers 4 arranged on the guide mechanism. The driving mechanism drives the roller 4 to rotate. The rotation direction is opposite to the transmission direction of the electrolytic copper foil. The roller 4 is provided with a through In the cavity 5, the surface of the roller 4 is provided with a number of rows of exhaust hole groups arranged in series, the exhaust hole group is in communication with the cavity 5, and the cavity 5 is supplemented by the air intake mechanism Hot air, the hot air discharged from the exhaust hole group is collected by the after heat treatment device, and the after heat treatment device circulates and discharges the collected hot air onto the electrolytic copper foil in a pressurized manner.

[0030] The electrolytic copper foil is pulled by the winding roller 2 to move. When passing through the box 3, the electrolytic copper foil located in the box 3 is guided by the guide mechanism, and passes through each roller 4 in turn. The rotation direction of the roller 4 is the same as that of the electrolytic copper foil. The driving direction is opposite. Each roller 4 rubs the surface of the electrolytic copper foil, and the hot air is input into the cavity 5 through the air intake mechanism, and is discharged from the exhaust hole group, so that the hot air affects the water on the electrolytic copper foil during the friction process. The stains are dried, and the discharged hot air continues to rise. Most of the hot air is located in the waste heat treatment mechanism. The heat treatment mechanism is pulsed downwards, and the hot air flows downward continuously to continue drying the electrolytic copper foil.

[0031] In a further optimization solution, the guiding mechanism includes a set of sliding rails 6, a plurality of the rotating rollers 4 are fixed between the sliding rails 6, a plurality of the rotating rollers 4 are arranged in sequence at intervals, and between the sliding rails 6 Two oppositely arranged protrusions 7 are provided. The protrusions 7 are fixed on the inner side of the slide rail 6, the rollers 4 and the protrusions 7 are arranged up and down correspondingly, and the bottom end of the slide rail 6 is fixed with a bottom plate 8. One end of the bottom plate 8 is fixed on the inner side wall of the box body 3. The driving mechanism includes a plurality of motors 9, and the output shafts of a plurality of the motors 9 extend into the slide rail 6 and interact with the roller One end of 4 is axially connected, and the electrolytic copper foil in the box 3 overlaps the two protrusions 7 and is located between the two slide rails 6. The slide rail 6 restricts its transmission direction, and the roller 4 and When the electrolytic copper foil contacts, the motor 9 drives the roller 4 to rotate and rub the electrolytic copper foil.

[0032] In a further optimization solution, the air intake mechanism includes a blower 10, a gas collecting box 11 is fixed at the top of the blower 10, the gas collecting box 11 is connected with the blower 10, and the top of the gas collecting box 11 is connected with heating Tube 12, the connection between the heating tube 12 and the gas collecting box 11 is provided with a drying part, the top of the heating tube 12 is connected with a gas collecting tube 13, and the top of the gas collecting tube 13 is fixed with a number of intervals arranged in sequence The end of the air duct 14 extends into the slide rail 6 and is inserted into the end of the roller 4 away from the motor 9, and the air duct 14 is in communication with the cavity 5, The blower introduces outside air into the air collecting box 11, after drying in the drying part, it is heated by the heating pipe 12 to form hot air, which is passed into the air collecting pipe 13, and the hot air is inputted into the air collecting pipe 13 respectively Into the cavity of the roller 4, it is discharged through the vent group and the surface of the electrolytic copper foil is dried.

[0033] To further optimize the solution, the drying part includes two layers of rubber pads 15 and desiccant particles 16 sandwiched between the two layers of rubber pads 15. The rubber pad 15 is provided with a plurality of vent holes, and the heating tube 12 An electric heating wire 17 is embedded, and the two layers of rubber pads 15 are glued together. The outside air passes through the desiccant particles 16 to remove moisture, and then enters the heating tube 12 to be heated by the electric heating wire 17, when the desiccant particles After 16 fails, disassemble the heating tube 12, tear off the rubber pad 15 at its joint, and replace it as a whole.

[0034] In a further optimization solution, the heat treatment mechanism includes a cylinder 18, which is fixed on the top wall inside the box 3, a push plate 19 is fixed at the piston end of the cylinder 18, and the bottom of the push plate 19 A push rod 20 is fixed at the end, a sleeve 21 is sleeved on the outside of the push rod 20, a piston 22 is fixed at the end of the push rod 20 in the sleeve 21, the piston 22 and the sleeve 21 The inner wall of the sleeve 21 is connected in contact with each other. The two ends of the sleeve 21 are fixed with support beams 23, the support beams 23 are fixed on the inner side wall of the box body 3, and the bottom of the sleeve 21 is inserted with an air outlet tube 24, An arc-shaped cover 25 is communicated with the bottom end of the air outlet pipe 24, the arc-shaped cover 25 opens downward, and the arc-shaped cover 25 is arranged up and down corresponding to the rotating roller 4. The cylinder 18 drives the push rod 20 to reciprocate in the sleeve 21, and the arc-shaped cover 25 covers the tops of the several rollers 4. The hot air continues to rise after drying, generating waste heat, and most of the hot air is covered by the arc-shaped cover When the push rod 20 retracts, the hot air moves quickly to the connection between the arc-shaped cover 25 and the air outlet tube 24. When the push rod 20 is pushed out, the air pressure in the arc-shaped cover 25 increases instantly, squeezing the arc The hot air in the cover 25 continues to move downwards. During this process, the flow rate of the air flow is also increased, so that it returns to the surface of the electrolytic copper foil for secondary drying. The reciprocating movement of the entire push rod 20 makes the overall structure pulse-like Exhaust, and reduce the temperature loss rate of the surface of the electrolytic copper foil, and the frictional air supplement method greatly improves the drying efficiency.

[0035] To further optimize the solution, the vent hole group includes a plurality of vent holes 26 arranged sequentially at intervals, and a plurality of sections of water absorbing layers 27 are sleeved on the outside of the roller 4, and a plurality of sections of the water absorbing layers 27 are formed between The gap 28 is arranged corresponding to the vent hole 26, and the gap 28 is in communication with the vent hole 26. When the roller 4 rubs the electrolytic copper foil, the water-absorbing layer 27 actually faces the surface of the electrolytic copper foil. While rubbing, while expelling hot air through the air vent 26 in the direction of the gap 28 to dry the surface of the electrolytic copper foil, while rubbing the surface water stains through the water-absorbing layer 27 during the rubbing process, the hot air drying process absorbs water The moisture in the layer 27 will also be gradually dried, so that the water-absorbing layer 27 remains dry and has a long service life.

[0036] To further optimize the solution, a number of springs 29 arranged in a spaced order are fixed between the inner wall of the water-absorbing layer 27 and the outer wall of the roller 4, and the contact area is further increased under the action of the springs 29 during friction extrusion. Improved water absorption effect.

[0037] To further optimize the solution, the water-absorbing layer 27 is a ring-shaped hard silicone ring. On the one hand, the water-absorbing layer 27 is supported by an internal spring 29, and on the other hand, its own hardness should not be too low to prevent extrusion deformation. The silicone material has good water absorption performance.

[0038] To further optimize the solution, the bottom plate 8 is provided with a groove 30, and a silicone plate 31 is embedded in the groove 30. The roller 4 and the silicone plate 31 are arranged up and down correspondingly, and the silicone plate 31 is provided for separation. Heat reduces the temperature loss speed on the top surface of the bottom plate 8.

[0039] To further optimize the solution, the two opposite side walls of the box 3 are respectively provided with an inlet and an outlet, the inlet and the outlet of the box 3 are on the same straight line, and the inlet and the outlet of the box 3 are on the same line as the slide rail. 6 Set in the same direction, the inlet and outlet of the box 3 are respectively equipped with guide rollers 32, and the electrolytic copper foil at the inlet and outlet of the box 3 is flattened by the guide rollers 32. The flattened electrolytic copper foil is easy to handle Water stains on its surface.

[0040] Example 2

[0041] Reference Figure 5-7 , The two ends of the air collecting pipe 13 are respectively connected with extension pipes, the two ends of the two extension pipes 33 are respectively connected with two pipes 34, the pipes 34 are perpendicular to the extension pipe 33, A pressure nozzle 35 is fixed at the top, the angle between the spray directions of the two pressure nozzles 35 is not greater than 180°, and one side of the arc-shaped cover 25 is provided with a transition opening 36, which is an arc The pressurizing nozzle 35 faces the transition opening 36. A part of the hot air in the air collecting pipe 13 enters the pressurizing nozzle 35 through the extension pipe 33 and the duct 34, and the pressurizing nozzle 35 pressurizes the hot air to the transition The opening 36 is ejected. When the push rod 20 draws air, part of the hot air flows to the joint between the air outlet pipe 24 and the arc-shaped cover 25. At this time, the part below the arc-shaped cover 25 is equivalent to some heat loss, so that when the air is pumped, Maintain the temperature of the lower part, and supply hot air to the bottom of the arc-shaped cover 25 through the pressurized nozzle 35 during air extraction, and the hot air enters the arc-shaped cover 25 through the transition opening 36 to ensure that the overall temperature is equivalent and no instantaneous temperature fault occurs. The overall temperature can continue to dry the surface of the electrolytic copper foil. When the push rod 20 pushes air outward, the pressurizing nozzle 25 stops working, which further ensures that the environment does not overheat and saves heating power.